Am hearing this for the very first time, what we know already was the introduction of bitcoin tokens which is often callee as ordinals inscriptions on the bitcoin blockspace, yet we don't know what the developers have concluded on regarding this, but what we can also see is that there's a little calmness now unlike the heat and pressure that got accumulated at the cause of high transaction fee.
If bitcoin tokens can succeded in finding it way through the bitcoin network then the stable coins may not be exceptional provided that they will have to share the same network with bitcoin because if you consider the stable coins today, they have their own separate network on the blockchain under BSC, Tron network. Or the developers may create another new stable coin that will make use of the bitcoin network aside from the existing ones.